发明名称 |
PULVERMETALLURGISKT FRAMSTELLNINGSFORFARANDE MED ELEKTRISK MOTSTANDSUPPVERMNING |
摘要 |
An improvement in a powder metallurgic manufacturing process where metal powder is compressed and heated in a mould and heat is produced by conducting electric current through the mould and the metal powder as well as through at least one electrically resistive fireproof body in actual contact with the mould where heat produced in the body is transferred to the mould and the metal powder. The improvement comprises maintaining electric tension between 2 and 200 volts; the current efficiency per unit volume of the mould between 20 and 200 W/cm3; and the resistivity of the electrically resistive fireproof body between 0.03 and 100 ohm x cm. |
申请公布号 |
SE413635(B) |
申请公布日期 |
1980.06.16 |
申请号 |
SE19760014028 |
申请日期 |
1976.12.24 |
申请人 |
L A * LEVANTO OY |
发明人 |
A J * ARVELA |
分类号 |
B22F3/105;B22F3/14;(IPC1-7):22F3/14;22C1/04 |
主分类号 |
B22F3/105 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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